﻿/*
   Copyright 2012 Dmitry Bratus

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Flower.Workflow
{
    /// <summary>
    /// The lock manager.
    /// </summary>
    public interface ILockManager
    {
        /// <summary>
        /// Locks specified resources.
        /// </summary>
        /// <param name="resources">The resources to lock.</param>
        /// <param name="owner">The owner of the lock.</param>
        /// <returns>The collection of failed locks. It's empty if all locks succeeded.</returns>
        LockFailure[] Lock(IEnumerable<string> resources, string owner);

        /// <summary>
        /// Unlocks specified resources.
        /// </summary>
        /// <param name="resources">The resources to unlock.</param>
        /// <param name="owner">The owner of the lock.</param>
        void Unlock(IEnumerable<string> resources, string owner);
    }
}
